Amoxicillin is a highly potent, broad spectrum antibiotic with rapid onset of action . It is completely absorbed from the small intestine and it is
unaffected by meals. Due to its broad action spectrum, it is active against both gram positive and gram-negative, micro-organisms including haemolytic & non haemolytic
streptococci, Bacillus anthracis, Corynebacterium and most strains of enterococci.
Among the gram negative organisms are: Proteus mirabilis, Brucella, Neisseria gonorrhea,H. influenza,Salmonella,Shigella and Escherichia coli. More than half of the oral dose is excreted in urine in an active form, so it is highly effective in urinary tract infections.